<template>
  <!-- 医院的等级 -->
  <div class="level">
    <h1>医院</h1>
    <div class="content">
      <div class="left">等级:</div>
      <ul class="hospital">
        <li :class="{ active: activeFlag == '' }" @click="changeLevel('')">全部</li>
        <li
          v-for="level in levelArr"
          :key="level.value"
          @click="changeLevel(level.value)"
          :class="{ active: activeFlag == level.value }"
        >
          {{ level.name }}
        </li>
      </ul>
    </div>
  </div>
</template>

<script setup lang="ts">
//引入组合式 API 函数
import { onMounted, ref } from 'vue'
import { reqHospitalLevelAndRegion } from '@/api/home'
import type { HospitalLevelAndRegionResponseData, HospitalLevelAndRegionArr } from '@/api/home/type'

//定义一个数组，存储医院等级
let levelArr = ref<HospitalLevelAndRegionArr>([])
//控制医院等级高亮的响应式数据
let activeFlag = ref<string>('')
//组件挂载完毕
onMounted(() => {
  getLevel()
})

//获取医院等级
const getLevel = async () => {
  let result: HospitalLevelAndRegionResponseData = await reqHospitalLevelAndRegion('HosType')
  //存储医院等级数据
  if (result.code == 200) {
    levelArr.value = result.data
  }
}

//点击等级的按钮回调
const changeLevel = (level: string) => {
  //高亮的响应式数据存储 level 数值
  activeFlag.value = level

  //触发自定义事件：将医院等级参数回传给父组件
  $emit('getLevel', level)
}

//父组件定义的事件
let $emit = defineEmits(['getLevel'])
</script>

<script lang="ts">
export default {
  name: 'Level'
}
</script>

<style scoped lang="scss">
.level {
  color: #7f7f7f;

  h1 {
    font-weight: 900;
    margin: 10px 0px;
  }

  .content {
    display: flex;
    .left {
      margin-right: 10px;
    }

    .hospital {
      display: flex;
      li {
        margin-right: 10px;

        &.active {
          color: #55a6fe;
        }
      }
      li:hover {
        color: #55a6fe;
        cursor: pointer;
      }
    }
  }
}
</style>
